Samsung GT-B5510 ››Lock your SIM or Usim card, → Location and security → Set screen lock → PIN

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Draw a pattern by dragging your finger to connect at least 4 dots and select Continue.

Draw the pattern again and select Confirm.

Set an unlock PIN code

1 In Idle mode, open the application list and select Settings

→Location and security → Set screen lock → PIN.

2 Enter a new PIN (numeric) and select Continue. 3 Enter the PIN again and select OK.

Set an unlock password

1 In Idle mode, open the application list and select

Settings → Location and security → Set screen lock → Password.

2 Enter a new password (alphanumeric) and select Continue.

3 Enter the password again and select OK.

››Lock your SIM or USIM card

You can lock your device by activating the PIN supplied with your SIM or USIM card.

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In Idle mode, open the application list and select Settings

→ Location and security → Set up SIM card lock → Lock SIM card.

Enter your PIN and select OK.

Once the PIN lock is enabled, you must enter the PIN each time you turn on the device.

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If you enter an incorrect PIN too many times, your SIM or USIM card will be blocked. You must enter a PIN unlock key (PUK) to unblock the SIM or USIM card.

If you block your SIM or USIM card by entering an incorrect PUK, bring the card to your service provider to unblock it.

Getting started

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